June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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Anatomy of a toolchain
To get an idea of what is in a typical toolchain, I want to examine the crosstool-NG toolchain you have just created. The examples use the ARM Cortex A8 toolchain created for the BeagleBone Black, which has the prefix arm-cortex_a8-linux-gnueabihf-. If you built the ARM926EJ-S toolchain for the QEMU target, then the prefix will be arm-unknown-linux-gnueabi instead.
The ARM Cortex A8 toolchain is in the directory ~/x-tools/arm-cortex_a8-linux-gnueabihf/bin. In there you will find the cross compiler, arm-cortex_a8-linux-gnueabihf-gcc. To make use of it, you need to add the directory to your path using the following command:
$ PATH=~/x-tools/arm-cortex_a8-linux-gnueabihf/bin:$PATH
Now you can take a simple helloworld ...
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